How are superabsorbent polymers made

How are superabsorbent polymers made

The main ingredients are acrylic acid, sodium hydroxide (or a similar neutralizing agent) and water plus a cross linker which forms the bridge that links one polymer chain to another.

This solution is mixed together and undergoes a polymerisation process to form the three-dimensional networks of polymer chains. This takes the form of an aqueous gel.

The granules are ground and sieved to the desired particle size. At this point the superabsorbent material can be further cross linked to give the material specific absorbency characteristics.

Keywords: superabsorbent, super absorbent polymer, SAP powder，Acrylic acid polymer

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